Results 31 to 40 of about 526 (187)
Shuitu Baochi Xuebao, 2007 河道生态系统中的河岸侵蚀和滨水缓冲带建设倍受关注。以上海市浦东新区机场镇的生态河道示范工程为例,探讨了以生态修复和稳定坡岸为目标的植物护坡技术在生态河道坡岸修复中的应用及其生态效应。在不同河段分别采用了全系列生态护坡、土壤生物工程护坡和复合式生物稳定等3类植物护坡技术。通过对工程实施后3a(2004年~2006年)来的生态监测发现,护坡植物生长良好,新生枝叶和根系的护坡作用明显,土壤抗剪强度明显增加,河岸土壤侵蚀得到有效控制,坡岸的结构稳定性增强;同时河岸生境得到改善,本地植物快速恢复,生物多样性增加 ...
赵广琦 +4 more
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Stability assessment of the road cut slopes in the Xigeda mudstone considering long-term creep deterioration and suggestion for countermeasures: A case study of cut slopes along the Xichang–Panzhihua Expressway [PDF]
The Xigeda clay-rock strata exhibit typical characteristics of long-term creep deterioration and saturation softening, which is typical slide-prone stratum.
Feng WANG +4 more
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Dianci bileiqi, 2020 针对边坡稳定性监测系统复杂工况条件下的设备防雷问题,分析直击雷和感应雷两种引起设备损坏的雷电危害和其危害方式。根据不同种类雷电危害的特点及监测设备的防护需求,设计采用由多针型避雷针、信号线屏蔽套管、防雷器、多级电源开关和人工接地网等装置构成的外部防雷措施和内部防雷措施结合的综合防雷系统,为边坡稳定性监测设备提供防雷保护,保证设备安全平稳运行。
李建宇 +4 more
doaj
Migration characteristics of landslide considering particle morphology [PDF]
Considering the particle morphology of geotechnical materials is essential for accurately assessing slope stability and predicting landslide migration.
Changyu HAN +5 more
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有限元强度折减法在边坡稳定性分析中的有效性及结果检验方法 [PDF]
, 2017 有限元强度折减法的有效性及结果评价决定该方法是否能在工程上得到认可及推广的关键。本文基于有理论解的地基承载力问题和澳大利亚计算机应用协会(ACADS)边坡稳定性典型考题,通过计算值与理论解的对比以及塑性贯通区结果,对有限元强度折减法用于边坡稳定分析的有效性、失稳判据以及结果评价等问题进行了系统研究,提出了以塑性带宽度与长度之比检验计算结果的方法。结果发现,在足够且合理的网格密度下,有限元强度折减法分析边坡稳定性是有效的,不同类型的临界状态判据差异不大,而塑性区贯通判据最为客观 ...
吴梦喜, 杨家修, 高桂云
core
Dizhen xuebao运用FLAC3D软件，基于数值模拟计算不收敛、特征点位移突变和塑性区贯通三类经典判据，针对均质土坡模型提出了边坡失稳时彩虹状位移云图的概念，建立了联合塑性区贯通和彩虹状位移云图判别边坡失稳的方法，并与三类传统判据进行了对比计算。结果表明：应用本文所提出的判据得到的安全系数与其它三类判据得到的安全系数相近，且具备操作性强、物理概念明确的优势。其中，采用塑性区贯通为判据得到的安全系数较小，与其它判据得出的结果相差约1.6%，同时证明了本文提出的彩虹状位移云图判据的可靠性和准确性 ...
Hongda Zhang +3 more
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, 2019 近年来,我国大量建筑物出现安全性降低或进入功能退化期,其中存在一些古老建筑的特殊加固改造需求。本文以厦门某具有重要历史意义的古老石墙建筑加固改造项目为例,在建筑内部结构破损严重的情况下,对石墙结构内部采用钢筋网水泥砂浆加固,新增构造柱及扶壁柱,并对内部框架结构梁柱板进行拆除重建,基础加宽加固等方法对建筑结构进行加固改造 ...
洪阳洲
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Failure mechanism and controlling measures of cut slope instability at Shouling temple, Luhuo County, Sichuan Province [PDF]
The Shouling temple in Luhuo County, Sichuan faces an urgent situation due to the construction of the Future Hall. A five-level excavation slope with a height of 21.8 m and a slope angle of 55° to 75° was formed on the northwest side of the site, leading
Gang LUO, Heming REN, Xingzheng WANG
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Shuitu Baochi Xuebao, 2002 介绍了锚固技术在公路边坡加固的应用,主要以锚固技术在具有不利倾斜结构面岩石的路堑边坡的稳定性中所发挥的作用进行说明其作用机理及有效性.
骆凤涛
doaj
Analysis on factors controlling shallow failures of the cut slopes and its prevention by bio-engineering measures: A case study of the cut slopes along the highway from Shuangcheng to Dajiali [PDF]
Understanding the primary and secondary relations of influencing factors is crucial for predicting deformation and controlling collapse in cutting slopes. Using a cutting slope along the Shuangcheng to Dalijia expressway in Gansu Province as the research
Changgen YAN +4 more
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